Techniques and apparatus for transmitting control information to maintain hybrid automatic repeat request (HARQ) processes for multiple carriers in different frequency ranges, such as frequency range 1 (FR1) and frequency range 2 (FR2), in carrier aggregation scenarios are described. A first numerology of a first component carrier (CC) in FR1 and a second numerology of a second CC in FR2 are determined. A HARQ configuration that includes an indication of a set of physical uplink control channel (PUCCH) resources is determined. A number of symbols of the set of PUCCH resources is based on the first numerology and the second numerology. The HARQ configuration is transmitted to a user equipment (UE). HARQ feedback is transmitted on the first CC for data received on the second CC, using the set of PUCCH resources of the HARQ configuration.
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2. The method of claim 1, wherein the first CC is an uplink CC and the second CC is a downlink CC.
3. The method of claim 2, wherein the first numerology comprises a first subcarrier spacing and the second numerology comprises a second different subcarrier spacing.
4. The method of claim 3, wherein the first subcarrier spacing is 15 kilohertz (kHz) and the second subcarrier spacing is 120 kHz.
5. The method of claim 3, wherein the first subcarrier spacing is 30 kilohertz (kHz) and the second subcarrier spacing is 120 kHz.
6. The method of claim 3, wherein the number of symbols of the set of PUCCH resources is six symbols.
7. The method of claim 3, wherein the number of symbols of the set of PUCCH resources is seven symbols.
8. The method of claim 3, wherein the number of symbols of the set of PUCCH resources is one symbol.
9. The method of claim 3, wherein the number of symbols of the set of PUCCH resources is two symbols.
10. The method of claim 1, wherein determining the HARQ configuration comprises determining a different HARQ configuration for each of a plurality of user equipment (UE) groups, wherein each UE group comprises one or more UEs.
11. The method of claim 10, wherein the HARQ configuration for at least a first UE group comprises a set of PUCCH resources that are time division multiplexed with a set of PUCCH resources for at least a second UE group.
13. The apparatus of claim 12, wherein the first CC is an uplink CC and the second CC is a downlink CC.
14. The apparatus of claim 13, wherein the first numerology comprises a first subcarrier spacing and the second numerology comprises a second different subcarrier spacing.
15. The apparatus of claim 14, wherein the number of symbols of the set of PUCCH resources is one symbol, two symbols, six symbols, or seven symbols.
17. The method of claim 16, wherein the first CC is an uplink CC and the second CC is a downlink CC.
18. The method of claim 17, wherein the first numerology comprises a first subcarrier spacing and the second numerology comprises a second different subcarrier spacing.
19. The method of claim 18, wherein the first subcarrier spacing is 15 kilohertz (kHz) and the second subcarrier spacing is 120 kHz.
20. The method of claim 18, wherein the first subcarrier spacing is 30 kilohertz (kHz) and the second subcarrier spacing is 120 kHz.
21. The method of claim 18, wherein the number of symbols of the set of PUCCH resources is six symbols.
22. The method of claim 18, wherein the number of symbols of the set of PUCCH resources is seven symbols.
23. The method of claim 18, wherein the number of symbols of the set of PUCCH resources is one symbol.
24. The method of claim 18, wherein the number of symbols of the set of PUCCH resources is two symbols.
25. The method of claim 16, wherein the HARQ configuration comprises a set of PUCCH resources that are time division multiplexed with a set of PUCCH resources for at least another UE.
27. The apparatus of claim 26, wherein the first CC is an uplink CC and the second CC is a downlink CC.
28. The apparatus of claim 27, wherein the first numerology comprises a first subcarrier spacing and the second numerology comprises a second different subcarrier spacing.
30. The apparatus of claim 28, wherein the number of symbols of the set of PUCCH resources is one symbol, two symbols, six symbols, or seven symbols.
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July 14, 2020
January 10, 2023
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